Agree with most of the above posters. Camping is doable in April, even in the northern states but might get cold and probably won't be much cheaper than just booking a budget hostel, or finding a room on sites like airbnb. I'd recommend checking hotwire as well, as they often have very cheap hotels, even if you don't know exactly which it is until it's booked, you get a rough idea (area & star rating). If you're up for it, couchsurfing can be really great as well.

I'll suggest you to go Panama City in US. You should get all the details on net. You get affordable hotel or rooms. There are many hotels and resort but the best one is -snip- For more details you can check out on net.